Glass-plate-feed track



June 24, 1930.

R'JGENENGER 1,767,922

" GLASS PLATE FEED TRACK Filed Jan. 27, 1928 92 .2 m qa f" J' i. f

Patented June 24, 1930 uurruo STATS PAT RICHARD GENENG or AAOHEN-FORST,GERMANY, assrenoa, BY mnsnn .afs'sreiv GLASS-PLATE-FEED TRACKApplication filled January 2' 7, 1928. Serial No. 249,9. 7

This invention relates to tracks for feeding or guiding glass plates,especially glass plates which are still in a hot and plastic condition.

In glass plate feed tracks of this kind comprising a continuous seriesof feeding or guiding elements which are stationary, movable orrotatable, it is of importance to avoid the formation of slits at thejoints 10 between successive elements. When such slits are formed theglass is apt to be caught therein, double over and form creases wherebythe value of the resultant product is'decreased. Sometimes, if the glassdoes not quickly free itself from the slits, the feeding operation isinterrupted oreven stopped altogether. In known glass feed tracks, forinstance in connection with the inclined chutes provided between theglass plate rolling mechanism of a glass machine and the transportingtables receiving the rolled plates, it has been a custom to make theedge of the stationa chute adjacent to the lower I one of the-twoizirming rolls of such a shape as to form a close fit and conform to thecontour of the roll so that it scrapes the surface of the roll for thepurpose of ensuring that the hot and plastic lass shall glide oft theforming'roll to the c ute without catching. It is found in practice,however, that owing to the non-uniform heating'of the chute same is aptto be distorted, for example, it is particularly apt to arch at the edgeadjacent to the forming -roll. As a result thereofthe chute gets out ofcontact with the roll and slits are formed which en tail theaforementioned difiiculties. In order to overcome this drawback it hasbeen proposed to leave a gap between the chute 40 and the roll and tocover this gap by a bridge consisting of a number of separateplate-shaped pieces arranged side by side and supported each by one ofits edges on the chute and by the opposite edge on the 5 surface of theroll The division of the bridge into small movable light pieces has forits purpose to provide for a greaterexpansibility of the bridge andavoidvthein-v 1ur1ous influence of non-uniform heating which mightotherwise entail a twisting or viarpi'ng of the bridge and the formationof s its.

In the actual use of such a divided bridge between successive elementsof glass plate feed tracks, such as between the lower roll of a rollingmechanism and a chute, it has shown that the several pieces forming thebridge become twisted or warped too and also detach from the roll to acertain extent so that again slits are formed between the roll surfaceand the bridge pieces. This is due to the mounting of the plate-shapedpieces which, in the known construction, rest with their entire frontand rear edges on adjacent elements or surfaces of the feed track.

Now, the present invention has for its object toavoid the formation ofany slits at the gaps between successive elements of glass plate feedtracks by the aid of the known divided bridges, this object beingattained by mounting the individual p1eces' of the bridge in such amanner that they are only supported each in one point at the elementreceiving the glass plate, while they" are supported along. a line oredge at the element delivering the plate. The single supporting point ispreferably formed by a" projection on the lower surface of the bridgepieces. p

In case the plate-shaped bridge pieces mounted in accordance with theinvention become distorted by the non-uniform heating suchdistortionwill be ineffective at the sur-' face from which the glass isbeing delivg5 ered, on the following grounds. For mounting a loose platesame must be supported at three points at least. As with the plateshapedpieces there is only one point of support at'the surface orelementreceiving 9 ment delivering the plate.

7 partly in section, of a glass IOlll-I bridge pieces on an enlarged soprojection in the glass plate the other two pointsof support must beformed at the surface or elethe pieces will always rest element slits.An embodiment of the subject-matter. the invention is illustrated in th"acco' panying drawing in which:

Fig. 1 is a diagrammatic side thus avoiding any formationof with achuteforming a feed track a to the invention;

Fig. 2 is a bottom plan view Fig. 3 1s a transverse section shown inFig. 2, and

Fig. 4 is a top plan view.o with the upper forming roll not wn.

a and b are the cooperating rollsalesigned to roll molten liquid glassinto platesl; c is a chute on which the glass plates-emerging frombetween the rolls a, glide down to transporting tables 0. As shown inthe drawing, the gap between the lower forming roll a and the chute c iscovered by an intermediate bridge. This bridge is composed of a seriesplate-shaped pieces 7 arranged side by side on a line parallel of theaxes of the rolls a, 6. These plates 7 are provided on their undersidein the middle near their lower edge with a projection g. The plates 7are freely supported by this a groove it formed on the chute a at theside lying towards the roll a. The edges 2' of the pieces f are shapedto conform to the circumference of the roll a points of support must beformed and the plates loosely rest by these edges 71 on the roll a. Theedges i by their intimate contact with the roll a act as strippersensuring a free gliding of the plates formed by the rolls a, b from theroll a to the chute c. Weights it or other suitable means may used forholding the plates position.

It will be understood that if the pieces f should become distorted owingto non-uniform heating, they will nevertheless remain mounted as shown,that is to say they will remain supported at three points. As only oneof these points lies on the chuteformed by the projection g-.the othgrtwo y the edge 11 on the roll a, which means that the edge 2' is held incontact with the roll a thus avoiding any formation of slits at theroll.

While the bridge composed of a series of pieces f according to theinvention is shown between the lower forming roll and a chute,

' such bridges may be used in connection with any glass plate feedtracks at all 'points' where the glass plate has to pass-from oneelement of the track to another one. In

This means that by their entire respective edge on the last-said surfaceor of; a.

of successive spaced elements, a bridge bef tween ad acent elements,this bridge being f in their this respect, it-is without any importancewhether the elements of the track are stationary, movable or rotatable.

Having thus described my invention, what I claim as new and desire tosecure by Letv.qt-ers Patent, is

1. In a glass plate feed track consisting 2. In a glass plate feed trackconsisting tween adjacent elements, this bridge being composed of anumber of separate plateshaped pieces arranged side by side transverselyof the track, each of said nieces being mounted to rest by one of itsedges on the track element delivering the glass plate and having aprojection on its under-sun in the middle near the opposite edge, andmeans at the succeeding track element re ceiving the glass plate forsupporting each bridge piece by its said projection.

3. In a glass plate feed track comprising a rotary roll and a stationaryguiding member, a bridge between said roll and the guiding member, thisbridge consisting of a number of small light plates arranged side byside parallely of the axis of the roll, each of said plates beingmounted to loosely rest by one of its edges on the surface of the saidroll, a groove in the guiding member at the edge adjacent to the roll,and a small narrow projection on the underside of each bridge plate inthe middle thereof,- adapted to be loosely received in the said grooveof the stationary guiding member.

4. In a glass plate feed track, comprising successive spaced elements, abridge between adjacent elements, said bridge having one entire edge incontact with one element and only a limited portion of its other edge inwith a support being narrower than the receiving surface of said brid e.

6. In a glass plate feed track consisting of successive spaced elements,a bridge between adjacent elements, said bridge'being supported throughits entire edge by one element and on the other element by a projectionwhich has a bearing surface narrower than the receiving surface of thebridge.

7. In a glass feed track 'comprisin successive elements, a bridgebetween ad aoent elements, said bridge resting entirei by one edge onone element with a, point contact on the succeeding element narrowerthan {)he oint of contact of the other edge of said 8. A bridge for aglass plate feed track, said bridge having a point of contact alon oneedge thereof and a narrower point 0 contact on the other edge.

In testimony whereof I have signed my name to this specification. I

RICHARD GENENGER.

